Determination of sorbic acid and benzoic acid in soya sauce using 4 -toulensulfonate of trimethylammonium as stationary phase by GC
LI Xin-hua
KOU Deng-min
Abstract：A silica capillary column (30 m ×0.53 mmi.d, 1.0μm, 9.5%W/V) using 4-toluensulfonate of trimethylammonium as stationary phase was prepared by the method of static coating .The experiment showed that this type of column had good colunmn characteristics and it has good capability in Separating sorbic acid and benzoic acid in soya sauce .The relative standard deviations were 0.53%~2.5%and the linear rangeands were 10 ×10-3 g.L-1 ~250 ×10 -3 g.L-1 and the limit of detection was 4.2 ×10-3 g.L-1 and the recovers of this method were 85%~96.1%.
Keywords：gas chromatography4-toluensulfonate of trimethylammoniumsorbic acidbenzoic acid
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 275-278 )